DS18B20_顯示溫度於LCD_NodeMCU_ESP8266

DS18B20_顯示溫度於LCD_NodeMCU_ESP8266

/* Sketch was generated by motoblockly 
 Website: http://www.motoblockly.com 
 Author: www.motoduino.com 
 Date: Thu Nov 15 2018 20:30:05 GMT+0800
 */ 
#include <Wire.h>
#include <esp_LiquidCrystal_I2C.h>
#include <esp_OneWire.h>
#include <esp_DallasTemperature.h>

esp_LiquidCrystal_I2C mylcd(0x27, 16, 2);
long  temp;
#define ONE_WIRE_BUS_2 2
OneWire oneWire_2(ONE_WIRE_BUS_2);
DallasTemperature sensors_2(&oneWire_2);

float Temperature_DS18B20_2(int tempUnit) {
sensors_2.requestTemperatures();
float temperature = sensors_2.getTempCByIndex(0);
if(tempUnit == 1)
   return temperature;
 else
   return ((temperature * 1.8) + 32);
}

void setup()
{
  mylcd.init();
  mylcd.backlight();

  sensors_2.begin();
    temp = 0;

}


void loop()
{
    temp = Temperature_DS18B20_2(1);
    mylcd.clear();
    mylcd.setCursor(0,0);
    mylcd.print(temp);
    delay(2000);

}